Quote:
Originally Posted by paulunderwood
PrimeGrid only. PG are sieving n=5M-10M already. It will be up to them when they decide to release more (only on their server.)
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Ah, I see. So, then, will the 321 project just die out, or will it pick a new k to work on? (Or maybe even a new base--such as 3*3^n-1?)